struts的增删改查

1.web.xml改成3.1

2.导入struts相关的配置文件

3.jdk1.5改为1.8同时需要添加plugins>plugin

4.web 2.3>3.1

pom.xml导入依赖后为

	4.0.0
	com.sjy
	struts
	war
	0.0.1-SNAPSHOT
	struts Maven Webapp
	http://maven.apache.org
	
    UTF-8
    1.8
    1.8
    3.7.0

    
    
    8.0.19
    
    4.12
    4.0.0
    2.9.3
    1.2
    1.1.2
    8.0.47
    1.9.3
    1.6.1
    1.1.6
    2.5.13
  
  
    
      jaxen
      jaxen
      ${jaxen.version}
    

    
      dom4j
      dom4j
      ${dom4j.version}
    


    
      commons-beanutils
      commons-beanutils
      ${commons-beanutils.version}
    

    
    
      mysql
      mysql-connector-java
      ${mysql.version}
    

    
      junit
      junit
      ${junit.version}
      test
    

    
      javax.servlet
      javax.servlet-api
      ${servlet.version}
      provided
    

    
      com.fasterxml.jackson.core
      jackson-databind
      ${jackson.version}
    
    
      com.fasterxml.jackson.core
      jackson-core
      ${jackson.version}
    
    
      com.fasterxml.jackson.core
      jackson-annotations
      ${jackson.version}
    

    
      jstl
      jstl
      ${jstl.version}
    
    
      taglibs
      standard
      ${standard.version}
    
    
      org.apache.tomcat
      tomcat-jsp-api
      ${tomcat-jsp-api.version}
    

    
      org.projectlombok
      lombok
      1.18.10
      provided
    

    
      com.belerweb
      pinyin4j
      2.5.0
    

    
      com.github.davidcarboni
      encrypted-file-upload
      2.1.0
    
    
    
			org.apache.struts
			struts2-core
			${struts2-core.version}
		 
  
  
		
		
	
		struts
		
			
				org.apache.maven.plugins
				maven-compiler-plugin
				3.7.0
				
					1.8
					1.8
					UTF-8
				
			
		
	

1.实体类 2.dao类 3.子控制器

现象：1.编码习惯问题，容易出现大小写配置错误

           2.每个子控制器都要实现对应接口，拿到request和respons对象

           3.向前端页面反馈的数据变量不统一

基于以上进行优化（baseAction）

baseAction内容

package com.sjy.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public abstract class baseAction extends ActionSupport implements ServletRequestAware,ServletResponseAware,ModelDriven{
protected static final String LIST="list";
protected static final String TOLIST="toList";
protected static final String TOEDIT="toEdit";
protected HttpServletRequest req;
protected HttpServletResponse resp;
protected HttpSession session;
@Override
public void setServletResponse(HttpServletResponse response) {
	this.resp=response;
}
@Override
public void setServletRequest(HttpServletRequest request) {
	this.req=request;
	this.session=request.getSession();
}
protected Object result;
protected String msg;
protected int code;
public Object getResult() {
	return result;
}
public void setResult(Object result) {
	this.result = result;
}
public String getMsg() {
	return msg;
}
public void setMsg(String msg) {
	this.msg = msg;
}
public int getCode() {
	return code;
}
public void setCode(int code) {
	this.code = code;
}

@Override
public String toString() {
	return "baseAction [req=" + req + ", resp=" + resp + ", session=" + session + ", result=" + result + ", msg=" + msg
			+ ", code=" + code + "]";
}

}

子控制器只需继承该类即可

实体类

package com.sjy.entity;

public class Clz {

	private int cid;
	private String cname;
	private String cteacher;
	private String pic;
	public int getCid() {
		return cid;
	}
	public void setCid(int cid) {
		this.cid = cid;
	}
	public String getCname() {
		return cname;
	}
	public void setCname(String cname) {
		this.cname = cname;
	}
	public String getCteacher() {
		return cteacher;
	}
	public void setCteacher(String cteacher) {
		this.cteacher = cteacher;
	}
	public String getPic() {
		return pic;
	}
	public void setPic(String pic) {
		this.pic = pic;
	}
	@Override
	public String toString() {
		return "Clz [cid=" + cid + ", cname=" + cname + ", cteacher=" + cteacher + ", pic=" + pic + "]";
	}
	
}

dao类

package com.sjy.dao;

import java.util.List;

import com.sjy.entity.Clz;
import com.zking.util.baseDao;
import com.zking.util.PageBean;

public class ClzDao extends baseDao{

	public List list(Clz clz, PageBean pageBean) throws Exception {
		String sql="select * from t_struts_class where 1=1 ";
		int cid = clz.getCid();
		if(cid!=0) {
			sql+=" and cid="+cid;
		}
		return super.executeQuery(sql, Clz.class, pageBean);
	}
	public void add(Clz t) throws Exception {
		String sql="insert into t_struts_class values(?,?,?,?)";
		super.executeUpdate(sql, t, new String [] {"cid","cname","cteacher","pic"});
	}
	public void del(Clz t) throws Exception {
		String sql="delete from t_struts_class where cid=?";
		super.executeUpdate(sql, t, new String [] {"cid"});
	}
	public void edit(Clz t) throws Exception {
		String sql="update t_struts_class set cname=?,cteacher=?,pic=? where cid=?";
		super.executeUpdate(sql, t, new String [] {"cname","cteacher","pic","cid"});
	}
}

子控制器

package com.sjy.web;


import com.sjy.dao.ClzDao;
import com.sjy.entity.Clz;
import com.zking.util.PageBean;

public class ClzAction extends baseAction{
	
	@Override
	public Clz getModel() {
		return clz;
	}
	private Clz clz=new Clz();
	private ClzDao clzDao=new ClzDao();
    public String list() throws Exception {
	PageBean pageBean=new PageBean();
	pageBean.setRequest(req);
	this.result = clzDao.list(clz, pageBean);
	this.req.setAttribute("result", result);
	this.req.setAttribute("pageBean", pageBean);
	return LIST;
}

public String add() throws Exception {
	clzDao.add(clz);
	return TOLIST;
}
public String del() throws Exception {
	clzDao.del(clz);
	return TOLIST;
}
public String edit() throws Exception {
	clzDao.edit(clz);
	return TOLIST;
}
public String toEdit() throws Exception {
	int cid=clz.getCid();
	if(cid!=0) {
		this.result= clzDao.list(clz, null).get(0);
		this.req.setAttribute("result", result);
	}
	return TOEDIT;
}


}

界面